About add-config-field
add-config-field is a development skill for adding fields to the majestic-engineer plugin's `.agents.yml` schema. It covers templates, schema versioning, migration logic, plugin versions, and verification steps.
Key features
- 01Add fields to four config templates
- 02Increment the schema version
- 03Update changelog and migration defaults
- 04Sync plugin and marketplace versions
- 05Verify changes with shell commands
Use cases
- 01Add a setting to `.agents.yml`
- 02Maintain configuration schema migrations
- 03Update docs for agents or commands that read a new field
Install
Copy the command and run it in a terminal.
npx skills add https:/ / github.com/ majesticlabs-dev/ majestic-marketplace --skill add-config-fieldAfter installing, type/add-config-fieldin Claude Code to confirm it loaded.
Details
From the project READMEAdd Config Field
Add a new field to the .agents.yml config schema with proper versioning and migration support.
Files Changed
| File | Purpose |
|---|---|
plugins/majestic-engineer/commands/workflows/init.md | 4 YAML templates that generate .agents.yml |
plugins/majestic-engineer/config-schema-version | Schema version number |
plugins/majestic-engineer/agents/config-reader.md | Changelog + migration logic |
plugins/majestic-engineer/.claude-plugin/plugin.json | Plugin version |
.claude-plugin/marketplace.json | Marketplace version |
Input
- Field name: e.g.,
auto_commit - Default value: e.g.,
falseor multi-line YAML - Section: Where in template (Workflow, Quality Gate, etc.)
- Comment: Inline explanation
- Used by: Agent/command that reads this field
Steps
1. Update init.md Templates
File: plugins/majestic-engineer/commands/workflows/init.md
Add field to ALL 4 templates (Rails, Python, Node, Generic). Find the appropriate section and add:
new_field: value # Comment explaining purpose
Or for multi-line:
new_field: # Comment
- item1
- item2
2. Bump Schema Version
File: plugins/majestic-engineer/config-schema-version
Increment: 1.1 → 1.2
3. Update config-reader.md
File: plugins/majestic-engineer/agents/config-reader.md
A) Add to Version Changelog table:
| 1.2 | `new_field` | Description |
B) Update migration YAML block (in "Outdated config_version" section):
new_field: default_value
4. Bump Plugin Versions
Files:
plugins/majestic-engineer/.claude-plugin/plugin.json:3.15.0→3.16.0.claude-plugin/marketplace.json: Update majestic-engineer entry version
5. Update Consumer Docs (if needed)
If a specific agent/command reads this field, update its documentation to mention the config.
Verification
# Count field in init.md (should be 4 - one per template)
grep -c "new_field" plugins/majestic-engineer/commands/workflows/init.md
# Check schema version
cat plugins/majestic-engineer/config-schema-version
# Check changelog entry
grep "new_field" plugins/majestic-engineer/agents/config-reader.md